WW2 Royal Ordnance Factory 13 munition workers brass buttonhole badge

A scarce original Second World War period 'Royal Ordnance Factory 13 munition workers brass buttonhole badge; the reverse impressed with maker's details 'T.L.M. Ltd B'Ham' and official low issue number '811'. Good condition, complete with original buttonhole lapel fitting, edge knock in the 7 o'clock position.
Diameter approx 31mm.

Code: 68088